Cable structure for wind driven generator

Abstract

The utility model discloses a cable structure used for a wind driven generator, comprising a protection layer, the inner wall of the protection layer is fixedly connected with an antiskid layer, the outer wall of the protection layer is uniformly and fixedly connected with four elastic ropes, and the tail ends of the elastic ropes far away from the protection layer are fixedly connected with a buffer layer. A limiting ring is fixedly connected to the outer surface of the buffer layer, an annular sliding groove is formed in the outer surface of the limiting ring, the central axis of the annular sliding groove is the same as that of the limiting ring, and two identical sliding blocks are slidably connected to the interior of the annular sliding groove; the end face, away from the annular sliding groove, of the sliding block is fixedly connected with a mounting frame. Through the arrangement of the elastic rope and the buffer layer, possible damage to the cable when the cable impacts a wall when the cable is blown by wind can be effectively reduced, meanwhile, through the buffer layer and the protection layer, impact force borne by the cable when the cable shakes and impacts when the cable is blown by wind is further reduced, and cable parts of the wind driven generator are effectively protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cable structure used for a wind turbine. Background Art

[0002] When the applicant was making this application, he searched and found that a Chinese patent disclosed a "wind turbine cable protection structure" with the application number "201822164251.X". This patent mainly includes a limiter and a protective sleeve. The limiter is used to be set on the tower, and the limiter is provided with a limit opening. The protective sleeve is used to be sleeved on the outside of the cable, and the protective sleeve passes through the limit opening, and the protective sleeve is loosely matched with the limit opening. In the above-mentioned wind turbine cable protection structure, the limiter is set on the tower, and the cable can be limited by the limit opening on the limiter to prevent the cable from swinging too much. The cable outer shell is provided with a protective sleeve, and the protective sleeve passes through the limit opening and is loosely matched with the limit opening to prevent the cable from being damaged due to the limitation of the limiter when twisting occurs. However, the limiter and the protective sleeve alone cannot reduce the impact force caused by the shaking of the cable when the wind blows. To this end, we propose a cable structure for a wind turbine to solve the above problems. Utility Model Content

[0003] The purpose of the present utility model is to provide a cable structure for a wind turbine generator to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, a cable structure for a wind turbine is provided, comprising a protective layer, wherein the inner wall of the protective layer is fixedly connected to an anti-slip layer, the outer wall of the protective layer is evenly fixedly connected to four elastic ropes, the ends of the elastic ropes away from the protective layer are fixedly connected to a buffer layer, the outer surface of the buffer layer is fixedly connected to a limit ring, the central axis of the limit ring is the same as the central axis of the protective layer, the outer surface of the limit ring is provided with an annular groove, the central axis of the annular groove is the same as the central axis of the limit ring, two identical sliders are slidably connected inside the annular groove, the end surface of the slider away from the annular groove is fixedly connected to a mounting bracket, and the end of the mounting bracket away from the annular groove is provided with a positioning hole. The elastic ropes are provided to facilitate the protection of the cable and reduce the damage that may be caused by shaking and colliding with the outside world when exposed to wind, and the buffer layer is provided to reduce the impact force of the cable colliding with the outside world when exposed to wind, thereby reducing the damage.

[0005] According to a cable structure for a wind turbine, two side-by-side fixing brackets are fixedly connected to the outer surface of the protective layer. The fixing brackets have screw holes formed at ends away from the outer surface of the protective layer. The screw holes penetrate the fixing brackets, and the central axes of the screw holes formed in the two side-by-side fixing brackets coincide with each other. The fixing brackets are provided to facilitate securing the cable and fixing the device to the cable.

[0006] According to the cable structure for a wind turbine, a screw is threadedly connected to the inner surface of the screw hole, the central axis of the screw is aligned with the central axis of the screw hole, and the screw passes through the left and right screw holes. By providing the screws that can pass through the screw holes, the two fixing brackets can be fixed together to fix the position of the cable.

[0007] According to the cable structure for a wind turbine, a protective shell is provided on the outer surface of the protective layer, a rotating shaft is rotatably connected to the outer surface of the upper end of the protective shell, and a shell door is rotatably connected to the outer surface of the rotating shaft. The shell door is provided to facilitate opening the protective shell through the shell door after installation without removing the protective shell.

[0008] According to the cable structure for a wind turbine, the shell door can be opened or closed by vertically flipping relative to the protective layer with the rotating shaft as the axis. The rotating shaft is provided to facilitate opening the shell door for later processing.

[0009] According to the cable structure for a wind turbine, a cable body is disposed within the anti-slip layer, and the central axis of the cable body is aligned with the central axis of the anti-slip layer. The alignment of the central axis of the cable body with the central axis of the anti-slip layer is intended to protect the cable from bending that may affect the internal structure.

[0010] According to the cable structure for a wind turbine, a limit bar is fixedly connected to the inner upper surface of the protective shell, and a groove is formed on the upper surface of the two fixing brackets. When the two fixing brackets are combined, the cross-sectional shape of the groove is the same as the cross-sectional shape of the limit bar. The limit bar is provided to facilitate the fixing of the protective shell to the fixing brackets and protect the internal screw device.

[0011] The beneficial effects of the utility model are as follows: by arranging the elastic rope and the buffer layer, the possible damage to the cable caused by hitting the wall when blown by the wind can be effectively reduced. At the same time, the buffer layer and the protective layer further reduce the impact force caused by the cable shaking and hitting the wall when blown by the wind, effectively protecting the cable components of the wind turbine.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a perspective view of the overall structure of a cable structure for a wind turbine according to the present invention;

[0015] Figure 2 This is a top view of the overall structure of a cable structure for a wind turbine according to the present invention;

[0016] Figure 3 This is a front view of the overall structure of a cable structure for a wind turbine according to the present invention;

[0017] Figure 4 This is a partial structural diagram of a cable structure for a wind turbine according to the present invention;

[0018] Legend:

[0019] 1. Protective layer; 2. Anti-slip layer; 3. Elastic rope; 4. Buffer layer; 5. Limiting ring; 6. Annular slide; 7. Slider; 8. Mounting bracket; 9. Positioning hole; 10. Cable body; 11. Protective shell; 12. Rotating shaft; 13. Shell door; 14. Fixing bracket; 15. Screw hole; 16. Screw; 17. Limiting strip. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0021] Example 1:

[0022] Reference Figures 1 to 4The present invention provides a cable structure for a wind turbine generator, comprising a protective layer 1, an anti-slip layer 2 fixedly connected to the inner wall of the protective layer 1, four elastic cords 3 evenly fixedly connected to the outer wall of the protective layer 1, a buffer layer 4 fixedly connected to the end of the elastic cord 3 away from the protective layer 1, a limit ring 5 fixedly connected to the outer surface of the buffer layer 4, the central axis of the limit ring 5 being the same as the central axis of the protective layer 1, an annular groove 6 being formed on the outer surface of the limit ring 5, the central axis of the annular groove 6 being the same as the central axis of the limit ring 5, two identical sliders 7 being slidably connected inside the annular groove 6, a mounting bracket 8 fixedly connected to the end of the slider 7 away from the annular groove 6, and a positioning hole 9 being formed on the end of the mounting bracket 8 away from the annular groove 6. The elastic cord 3 can protect the cable from possible damage caused by shaking and colliding with the outside world when exposed to wind, and the buffer layer 4 can reduce the impact force of the cable colliding with the outside world when exposed to wind, thereby reducing damage.

[0023] Two side-by-side fixing brackets 14 are fixedly attached to the outer surface of the protective layer 1. Screw holes 15 are defined on the ends of the fixing brackets 14, facing away from the outer surface of the protective layer 1. The screw holes 15 extend through the fixing brackets 14, with the central axes of the screw holes 15 on the two side-by-side fixing brackets 14 aligning. A slit is defined between the fixing brackets 14, allowing the protective layer 1 to be opened through this slit to insert and protect the cables.

[0024] The inner surface of the screw hole 15 is threadedly connected with a screw 16, and the central axis direction of the screw 16 is consistent with the central axis direction of the screw hole 15. The screw 16 passes through the left screw hole 15 and the right screw hole 15. The screw 16 fixes the two fixing brackets 14 to fix the protective layer 1 from being opened.

[0025] The outer surface of the protective layer 1 is provided with a protective shell 11, the outer surface of the upper end of the protective shell 11 is rotatably connected to the rotating shaft 12, and the outer surface of the rotating shaft 12 is rotatably connected to the shell door 13. The shell door 13 can be rotated open to maintain the fixing bracket 14. The protective shell 11 is mainly used to prevent rainwater from eroding the internal screws 16.

[0026] The shell door 13 can be opened or closed by being vertically flipped relative to the protective layer 1 with the rotating shaft 12 as the axis.

[0027] The cable body 10 is arranged inside the anti-slip layer 2, and the central axis direction of the cable body 10 is consistent with the central axis direction of the anti-slip layer 2. The cable body 10 is wrapped by the anti-slip layer 2 and then placed in the protective layer 1, which can fix the device on the cable body 10 without slipping.

[0028] A limit bar 17 is fixedly connected to the inner upper surface of the protective shell 11. A groove is formed on the upper surface of the two fixing brackets 14. When the two fixing brackets 14 are joined together, the cross-sectional shape of the groove is the same as that of the limit bar 17. When the two fixing brackets 14 are fixed together, a groove is formed on the upper surface with a cross-sectional shape identical to that of the limit bar 17. The limit bar 17 can be aligned with the groove to push the protective shell 11 into place, and then the protective shell 11 is fixed to the outer surface of the protective layer 1. If the protective shell 11 needs to be opened later, it can be opened by rotating the shell door 13.

[0029] Working principle: First, select a cable structure that matches the size of the cable body 10, then separate the protective layer 1 along the crack between the two fixing brackets 14, wrap the cable body 10 with the protective layer 1, and then close the protective layer 1. At this time, the two fixing brackets 14 are adjacent and fit together, use screws 16 to pass through the screw holes 15 and tighten them, then rotate the mounting bracket 8 to the appropriate position, and use the positioning holes 9 to fix the entire device.

[0030] Example 2:

[0031] The existing patent embodiment of the wind turbine cable protection structure mentioned in the above background technology includes a limiter and a protective cover. The limiter is used to be set on the tower, and a limit opening is provided on the limiter. The protective cover is used to be sleeved on the outside of the cable, and the protective cover passes through the limit opening, and the protective cover is clearance-matched with the limit opening.

[0032] Conclusion: In the first embodiment, the limiting ring 5, the elastic rope 3 and the buffer layer 4 are provided, which can achieve the effect of buffering the impact of the cable on the limiting ring when the wind blows. In the second embodiment, the protective cover and the limiting member are provided, which solves the problem that the cable is long in the air and may swing with the tower of the wind turbine and then collide with the tower and other objects.

[0033] A collision may cause the cable to be damaged. However, in Example 1, the provision of a limiting ring, an elastic rope and a buffer layer can reduce the impact force on the limiting ring when the cable shakes, and reduce the possibility of damage to components. In Example 2, only the limiting member and the protective cover cannot reduce the impact force caused by the cable shaking when the wind blows.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A cable structure for a wind turbine, comprising a protective layer (1), characterized in that: The inner wall of the protective layer (1) is fixedly connected with an anti-slip layer (2), the outer wall of the protective layer (1) is evenly fixedly connected with four elastic ropes (3), the ends of the elastic ropes (3) away from the protective layer (1) are fixedly connected with a buffer layer (4), the outer surface of the buffer layer (4) is fixedly connected with a limit ring (5), the central axis of the limit ring (5) is the same as the central axis of the protective layer (1), the outer surface of the limit ring (5) is provided with an annular slide groove (6), the central axis of the annular slide groove (6) is the same as the central axis of the limit ring (5), two identical sliders (7) are slidably connected inside the annular slide groove (6), the end surface of the slider (7) away from the annular slide groove (6) is fixedly connected with a mounting bracket (8), and the end of the mounting bracket (8) away from the annular slide groove (6) is provided with a positioning hole (9).

2. A cable structure for a wind turbine according to claim 1, characterized in that: The outer surface of the protective layer (1) is fixedly connected to two side-by-side fixing brackets (14); a screw hole (15) is provided at one end of the fixing bracket (14) away from the outer surface of the protective layer (1); the screw hole (15) passes through the fixing bracket (14); and the central axis directions of the screw holes (15) provided on the two side-by-side fixing brackets (14) coincide with each other.

3. A cable structure for a wind turbine according to claim 2, characterized in that: The inner surface of the screw hole (15) is threadedly connected with a screw (16), the central axis direction of the screw (16) is consistent with the central axis direction of the screw hole (15), and the screw (16) passes through the left screw hole (15) and the right screw hole (15).

4. A cable structure for a wind turbine according to claim 2, characterized in that: The outer surface of the protective layer (1) is provided with a protective shell (11), the outer surface of the upper end of the protective shell (11) is rotatably connected to a rotating shaft (12), and the outer surface of the rotating shaft (12) is rotatably connected to a shell door (13).

5. A cable structure for a wind turbine according to claim 4, characterized in that: The shell door (13) can be opened or closed by vertically flipping relative to the protective layer (1) with the rotating shaft (12) as the axis.

6. The cable structure for a wind turbine according to claim 1, characterized in that: A cable body (10) is provided inside the anti-slip layer (2), and the direction of the central axis of the cable body (10) is consistent with the direction of the central axis of the anti-slip layer (2).

7. A cable structure for a wind turbine according to claim 4, characterized in that: The inner upper surface of the protective shell (11) is fixedly connected to a limiting strip (17), and the upper surfaces of the two fixing brackets (14) are provided with a groove. When the two fixing brackets (14) are put together, the cross-sectional shape of the groove is the same as the cross-sectional shape of the limiting strip (17).

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